Emacs: Change Major Mode Keys
To change/add keys to a major mode, Add a function to the major mode's hook. A hook will load your code whenever that mode is activated. [see Emacs: What is Major Mode] [see Emacs: What is Hook]
Here's a example of adding keys to go-mode for Golang .
(when (fboundp 'go-mode) (defun my-golang-config () "For use in `go-mode-hook'." (local-set-key (kbd "C-c C-c") 'gofmt) ;; more stuff here ) (add-hook 'go-mode-hook 'my-golang-config))
To unbind a key, set it to nil.
- Find the major mode's name. [see Emacs: Find Major Mode Name]
- Find the mode's hook name. [see Emacs: What is Hook]
- Define a function. (See example abov.)
- Add the function to the hook.
Modify Major Mode Keymap Directly
Alternatively, if you know the mode's keymap variable name, you can modify it directly.
(progn ;; modify dired keys (require 'dired ) (define-key dired-mode-map (kbd "o") 'other-window) (define-key dired-mode-map (kbd "2") 'delete-window) (define-key dired-mode-map (kbd "3") 'delete-other-windows) (define-key dired-mode-map (kbd "4") 'split-window-below) (define-key dired-mode-map (kbd "C-o") 'find-file))